[Users] NEW MODULE : dialog support

[Bogdan-Andrei Iancu]

Hi,

the devel version includes a new module for providing dialog support. 
For more about it, please see:
    http://openser.org/docs/modules/1.1.x/dialog.html

Currently the module offers only call tracking functionality.
In the future, new functionalities as dialog termination, per dialog 
flags and AVPs will be added. These will make possible implementation of 
more complex dialog-based features (like location hiding).

regards,
bogdan